What is high Q MLCC?

High Q MLCC stands for high quality multilayer ceramic capacitors. These are capacitors made from multiple layers of ceramic material, with conductive metal electrodes on the top and bottom. The high Q value refers to the capacitor's ability to store energy with minimal losses due to resistance, making them suitable for use in high-frequency applications where low signal loss is critical. They are suitable for high-power, high-voltage applications, like Microwave / RF / IF amplifiers, power amplifiers, filter networks, MRI coils, Mixers, UHF, Oscillators, RF generators for laser, plasma, power filters etc application

Difference between standard MLCC and high Q MLCC

Main difference: their ability to maintain a high level of quality factor (Q factor) over a range of frequencies.

A Q factor measures the energy stored in a capacitor compared to the energy lost due to its inherent resistance. A higher Q factor means that the capacitor can store more energy for longer periods of time, which is beneficial in applications where stability and accuracy are crucial.

High Q MLCCs are designed to have a lower ESR (equivalent series resistance) and higher self-resonant frequency, resulting in a more stable and accurate performance over a wider range of frequencies. They also tend to have tighter tolerances and more consistent characteristics than standard MLCCs, making them ideal for use in high-frequency applications such as RF circuits, filters, and resonators.

Standard MLCCs, on the other hand, are more widely used and are suitable for a wide range of applications where high precision and stability are not critical. They are less expensive and come in a wider range of capacitance values and sizes than high Q MLCCs.

In summary, standard MLCC is cheaper, suits for application that is not critical precision and stability

High Q MLCC is higher quality, with better stability, accuracy, and consistency for high-frequency applications.

HONGDA Capacitors, the ISO9001 qualified factory in China, start manufacturing since 1999, the capacitors, inductors specialist.

Their high Q MLCC, MQ series, with power over 1KW and max voltage 7200V, their datasheet for your reference: https://www.hongdacap.com.hk/pdf/High-Q-Multilayer-Ceramic-Capacitors-MQ-Series.pdf

Replace Murata GQM & GJM series, Johason 0900 & 251R series, ATC 100/ 700/800 series, Taiyo Yuden UKM series, etc.